System and method for trellis coded quantization with selective feedback and interpolation

Patent metadata

Field	Value
Publication number	US-9209869-B2
Application number	US-201314070233-A
Country	US
Kind code	B2
Filing date	Nov 1, 2013
Priority date	Nov 1, 2013
Publication date	Dec 8, 2015
Grant date	Dec 8, 2015

Abstract

A method for providing channel feedback includes receiving a signal from a transmission point (TP), estimating channel parameters from the signal as received, mapping the estimated channel parameters to a trellis in accordance with a Trellis Coded Quantization (TCQ) scheme, and applying a Viterbi algorithm (VA) to the trellis to generate quantized channel parameters, the quantized channel parameters including a plurality of samples. The method also includes identifying samples of the estimated channel parameters associated with samples of quantized channel parameters having quantization errors above a predetermined threshold, generating indicators in accordance with the samples having the quantization error above the predetermined threshold, and transmitting, by the RP, the quantized channel parameters and the indicators to the TP.

First claim

What is claimed is:

1. A method for providing channel feedback, the method comprising:
receiving, by a reception point (RP), a signal from a transmission point (TP);
estimating, by the RP, channel parameters from the signal as received;
mapping, by the RP, the estimated channel parameters to a trellis in accordance with a Trellis Coded Quantization (TCQ) scheme;
applying, by the RP, a Viterbi algorithm (VA) to the trellis to generate quantized channel parameters, the quantiz…

Assignees

• Huawei Tech Co Ltd

Inventors

• Suh Junghoon
• Zhang Jiayin

Classifications

• H04B7/0417 Primary

  Electricity · mapped topic

• H04B7/024

  Electricity · mapped topic

• H04B7/0658

  Electricity · mapped topic